I have a USB webcam and a USB external sound card, but I don't know what software I can use to record a gig with a band at the best quality possible.
Anything that works with Vista is a bonus! I have no idea where to look!
Yeah web cams are not known for their quality especially in low light. But you could try Virtual Dub. I'm not sure if it will pick up the web cam feed but I know it has several source options to record from.